Acid determination of vitamin c

Overview Overview Information Vitamin C is a vitamin. Some animals can make their own vitamin C, but people must get this vitamin from food and other sources. Good sources of vitamin C are fresh fruits and vegetables, especially citrus fruits.

Acid determination of vitamin c

Although other voltammetric methods e. The concentrations of ascorbic acid in fruit juice determined by cyclic voltammetry are in good agreement with the data obtained by a classical volumetric method Table 2.

The obtained results are also in good agreement with the data reported in literature regarding the content of ascorbic acid in citrus fruits.


Thus, the reported values for lemon are These values are in accordance with those we obtained for orange and lemon juice fruit squeezing The results obtained in this study show that cyclic voltammetry can be successfully used as part of quality management in food industry, for assessing the vitamin C content in natural fruit juice and soft drinks.

The results prove why, recently, this technique has been more and more preferred to the previously applied methods, as it is characterized by accuracy, rapidity, good specificity, and sensitivity, and also by the simplicity of the required equipment and procedure. Acknowledgment This work was performed with the support of the Romanian National Agency for Research, in the frame of the Research Project no.

View at Google Scholar M. View at Google Scholar N.

Chemistry of ascorbic acid - Wikipedia

View at Google Scholar P. View at Google Scholar A.Vitamin C (ascorbic acid) is an antioxidant that is essential for human nutrition. Vitamin C deficiency can lead to a disease called scurvy, which is characterized by abnormalities in the bones and teeth.

Spectrophotometric Determination of Total Vitamin C in the vitamin C: ascorbic acid and its oxidized form dehydroascorbic acid, and the different chemical, optical and electrochemical properties as well.

On the basis of reducing property of ascorbic acid, it can be determined.

IB Chemistry: Determination of Vitamin C content

Experiment #4 Vitamin C Determination Page 2 II+ I II I O O H C H OH HOCH 2 HO OH C O O ascorbic +KI 3 2HI KI+ acid Experimental Objective and Background You will determine the amount of ascorbic acid in a fruit drink by means of a.

Ascorbic Acid (Vitamin C): Voltametric Determination The juice samples were weighed directly into the titration beaker, without special treatment such as filtration.

Even the relatively high pulp content of the grapefruit juice did not disturb the titration.

Acid determination of vitamin c

Determination of Ascorbic Acid in Vitamin Determination of Ascorbic Acid in Vitamin C Tablets Introduction: Ascorbic acid, C 6H 8O 6, is a reducing agent and can be oxidized to form dehydroascorbic acid by iodine via the following reaction (1). A. Tablet Vitamin C Determination: In this part of the experiment you will experimentally determine the amount of vitamin C in a vitamin C tablet.

Because vitamin C degrades over time, m anufacturers produce tablets with slightly more than the stated amount.

Determine the amount of vitamin C in a peach